Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Han-Jin Lee

Jong-Hyung Kwun

Dong-wook Kim

Young-Hyun Jeon

Hyun-Soo Yoon

Chan-Ho Min

Dong-hyun Roh

Geun-Woo Kim

Seung-Woo Jeon

Sawhney Mrinalini

Sang-Yeong Chung

Jeong-Ja Kim

A method for forming a moving network group by a mobile relay station (MRS) in a mobile multi-hop relay (MMR) system is provided. The MRS determines whether a transportation means mounted with the mobile relay station is at a predetermined location derived from travel information. When a velocity information of the transportation means at the predetermined location is zero (0), the MRS determines whether to include a mobile station (MS) to the moving network group based at least partly upon a signal that the mobile station receives from the mobile relay station.

Method for forming a moving network group in a mobile relay station and mobile multi-hop relay system supporting the same

An apparatus and method for performing a handover in a broadband wireless communication system is provided. In the broadband wireless communication system, a base station includes: a grouping unit for grouping mobile stations by using information on a movement path of each mobile station and information on a received signal strength of a neighboring base station, thereby constituting at least one group; a controller for modifying hystereses of remaining mobile stations among the mobile stations belonging to the same group, if a predetermined number of mobile stations perform handovers; and a transmitter for transmitting a message including modified hysteresis information to the remaining mobile stations belonging to the group.

Apparatus and method for performing handover in broadband wireless communication system

Growing community of inventors

Daejeon, South Korea

Han-Jin Lee